EP0127635A1 - Verfahren zur entfernung von manganhaltigen inkrustationen aus zur wasserversorgung betriebenen einrichtungen, behandlungslösung und deren verwendung - Google Patents

Verfahren zur entfernung von manganhaltigen inkrustationen aus zur wasserversorgung betriebenen einrichtungen, behandlungslösung und deren verwendung

Info

Publication number
EP0127635A1
EP0127635A1 EP83903530A EP83903530A EP0127635A1 EP 0127635 A1 EP0127635 A1 EP 0127635A1 EP 83903530 A EP83903530 A EP 83903530A EP 83903530 A EP83903530 A EP 83903530A EP 0127635 A1 EP0127635 A1 EP 0127635A1
Authority
EP
European Patent Office
Prior art keywords
solution
weight
hydrogen peroxide
incrustations
manganese
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP83903530A
Other languages
German (de)
English (en)
French (fr)
Inventor
Rainer Späne
Thomas Kötzsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
R Spane & Co KG GmbH
Original Assignee
R Spane & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6179542&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0127635(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by R Spane & Co KG GmbH filed Critical R Spane & Co KG GmbH
Publication of EP0127635A1 publication Critical patent/EP0127635A1/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • C02F1/64—Heavy metal compounds of iron or manganese
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

Definitions

  • the invention relates to a method for removing in particular calcium, iron and manganese-containing incrustations from water supply facilities, a treatment solution and the new use of the basic components of the treatment solution.
  • lactic acid or formic acid noticeably better, but still not ausich ⁇ de cleaning effects services were achieved with heated to about 60 ° C ⁇ itronen yarnrefiten in many cases relatively satisfactory cleaning results'.
  • heated solutions for cleaning wells, pipes or walls of drinking water reservoirs, for example is not very practical because the heat from the cleaning solution is constantly lost through the environment.
  • DE-A-25 20 988 also discloses a method for removing scale and / or sludge.
  • D These deposits differ in character from the sintering and sintering to be treated according to the present invention in that they have hardly any iron content and no manganese content.
  • a two-stage treatment takes place, in which rinsing or treatment with an acid solution is carried out for a relatively long time, after which treatment with a pure hydrogen peroxide solution is carried out.
  • the treatment with acid serves to loosen up of the original coating, so that it becomes porous, and the subsequent treatment with hydrogen peroxide leads to a bursting of the coating because hydrogen peroxide penetrates into the pores and on the sharp-edged surfaces and / or through traces of
  • the present invention further generally relates to
  • the present invention thus relates generally to one
  • the two steps of the method described can be carried out at different locations by different people, so that, for example, the manufacture of a solution intended for the method according to the invention by a pure manufacturer and the use of this solution by a specialist for the treatment of water supply devices as Implementation of the claimed method can be seen.
  • Another, but very special advantage of the invention lies in the fact that the use of hydrogen peroxide, which ultimately forms water in the course of its reactions, means that no unnecessary foreign substances are introduced and thus unnecessary water pollution is avoided.
  • treatment solutions which contain mineral-acidic, aqueous hydrogen peroxide solutions with a content of 0.05 to 20% by weight, preferably 0.1 to 3% by weight, H 2 ⁇ 2.
  • the mineral acid concentration corresponds to a normality ( N) from 0.001 N to 6 N, preferably from 0.5 N to 4.5 N, for normal customary applications very particularly preferably from 0.5 N to 3 N, in each case based on the water content contained in the system.
  • Suitable mineral acids are, for example, hydrochloric acid and optionally sulfuric acid.
  • hydrochloric acid is preferred.
  • aqueous mineral acidic hydrogen peroxide solutions according to the invention can, depending on the intended use, also be used with conventional solutions
  • OMPI 1 emulsifiers for example, in amounts of between 0.5 to 3.0 each
  • anionic and / or cationic and / or neutral detergent organic acids in the form of carboxylic acids, hydroxyl acids or sulfonic acids, wetting agents and / or lower aliphatic alcohols.
  • a typical preferred treatment solution according to the invention thus consists of 6 to 50% by weight 30 to 33% hydrochloric acid, 0.05 to 20% by weight hydrogen peroxide, 0.5 to 3.0% by weight anionic and / or cationic and / or neutral detergents, 0.5 to 3.0% by weight of organic carboxylic acids and / or organic hydroxy acids 15 and / or organic sulfonic acids, 0.5 to 3.0% by weight of one or more lower aliphatic alcohols and a balance up to 100% by weight water.
  • the invention is explained in more detail below on the basis of exemplary embodiments.
  • a scratch-resistant black coating on the walls of a drinking water container which had not been treated since 1968 and which was hardly attacked by semi-concentrated hydrochloric acid, consisting of a high content of
  • Iron was sprayed per square meter with about 0.7 liters of a 0.9% by weight hydrogen peroxide and 0.5% by weight of a wetting agent based on polyethylene glycol in a treatment solution containing 2N hydrochloric acid.
  • Such a solution can be prefabricated industrially and is stable in large quantities.
  • a hydrochloric acid content of 30 to 35% by weight, it is particularly well suited for the treatment of normal incrustations, while higher acid contents can be chosen if particularly stubborn, strongly aged incrustations are to be treated.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)
  • Removal Of Specific Substances (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP83903530A 1982-12-01 1983-12-01 Verfahren zur entfernung von manganhaltigen inkrustationen aus zur wasserversorgung betriebenen einrichtungen, behandlungslösung und deren verwendung Pending EP0127635A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3244443A DE3244443C2 (de) 1982-12-01 1982-12-01 Verfahren zur Entfernung von eisen-, calcium- und manganhaltigen Verockerungen und/oder Versinterungen aus zur Wasserversorgung betriebenen Einrichtungen
DE3244443 1982-12-01

Publications (1)

Publication Number Publication Date
EP0127635A1 true EP0127635A1 (de) 1984-12-12

Family

ID=6179542

Family Applications (2)

Application Number Title Priority Date Filing Date
EP83112059A Expired EP0113060B2 (de) 1982-12-01 1983-12-01 Verfahren zur Entfernung von manganhaltigen Inkrustationen aus zur Wasserversorgung betriebenen Einrichtungen
EP83903530A Pending EP0127635A1 (de) 1982-12-01 1983-12-01 Verfahren zur entfernung von manganhaltigen inkrustationen aus zur wasserversorgung betriebenen einrichtungen, behandlungslösung und deren verwendung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP83112059A Expired EP0113060B2 (de) 1982-12-01 1983-12-01 Verfahren zur Entfernung von manganhaltigen Inkrustationen aus zur Wasserversorgung betriebenen Einrichtungen

Country Status (7)

Country Link
US (1) US4806169A (es)
EP (2) EP0113060B2 (es)
AT (1) ATE23143T1 (es)
CA (1) CA1245955A (es)
DE (2) DE3244443C2 (es)
ES (1) ES8504634A1 (es)
WO (1) WO1984002125A1 (es)

Families Citing this family (24)

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Publication number Priority date Publication date Assignee Title
DE3431101A1 (de) * 1984-08-24 1986-03-06 Hubert F. 6000 Frankfurt Neuhausen Flusssaeure - enthaltende waessrige organische saeuremischungen mit eventuellem zusatz von anorganischen saeuren und korrisionsinhibitoren
EP0183894B1 (de) * 1984-11-30 1991-07-24 Feldmann-Chemie GmbH Verwendung von Mischung aus organischen und/oder anorganischen Säuren und/oder sauren Salzen zur Entfernung von eisen- und manganhaltigen Ablagerungen und Verockerungen
DE3625280A1 (de) * 1986-07-25 1988-02-04 Feldmann Hagen Reiniger fuer trinkwasseranlagen
US5022926A (en) * 1988-06-10 1991-06-11 W. R. Grace & Co.-Conn. Corrosion control
US5885364A (en) * 1991-05-16 1999-03-23 H.E.R.C. Products Incorporated Method of cleaning and maintaining potable water distribution pipe systems
US5360488A (en) * 1993-03-23 1994-11-01 H.E.R.C. Products Incorporated Method of cleaning and maintaining water distribution pipe systems
US5527395A (en) * 1991-05-16 1996-06-18 H.E.R.C. Products Incorporated Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution
DE4243303C1 (de) * 1992-12-21 1994-09-01 Aquaplus Brunnensanierung Kaet Verfahren zum Reinigen eines Brunnenschachtes
WO1994021865A1 (en) * 1993-03-23 1994-09-29 H.E.R.C. Incorporated Method of cleaning and maintaining potable water distribution pipe systems
GB2281742A (en) * 1993-09-09 1995-03-15 Grace W R & Co Biocidal composition
WO1995035419A1 (en) * 1994-06-20 1995-12-28 H.E.R.C. Products Incorporated Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution
DE4428027A1 (de) * 1994-08-08 1996-02-15 Spaene Kg R Verwendung von Hydrogensulfat als Säurekomponente in Verbindung mit Wasserstoffperoxid zur Reinigung von Trinkwasserversorgungseinrichtungen
GB2297976A (en) * 1995-02-01 1996-08-21 Reckitt & Colmann Prod Ltd Improvements in or relating to a bleaching process
JP3747504B2 (ja) * 1996-02-23 2006-02-22 栗田工業株式会社 銅の孔食防止方法
US5800629A (en) * 1997-03-06 1998-09-01 H.E.R.C. Products Incorporated Pipe system cleaning and in-line treatment of spent cleaning solution
US6076536A (en) 1998-10-07 2000-06-20 H.E.R.C. Products Incorporated Cleaning and passivating water distribution systems
US6346217B1 (en) 1999-06-02 2002-02-12 Water Whole International, Inc. Composition and method for cleaning drink water tanks
DK1150923T3 (da) 1999-12-10 2007-07-02 Spaene Kg R Fremgangsmåde til fjernelse af aflejringer fra vandoverföringssystemer og indretninger til vandtilförsel
DE102012109099A1 (de) 2012-09-26 2014-03-27 Carela Gmbh Desinfektionsreiniger für Trinkwasserversorgungsanlagen und seine Verwendungen
DE102013203156A1 (de) 2013-02-26 2014-08-28 Carela Gmbh Verfahren zur Entfernung von Biofilmen aus Anlagen zur Bereitstellung und Verteilung von Trink- und Brauchwasser
MY194306A (en) * 2014-07-28 2022-11-27 Nat Univ Singapore Rapid cleaning method for ultrapure water piping system
ES2607234B1 (es) * 2015-09-29 2018-03-07 Universidad De Sevilla Procedimiento de limpieza de Fe y Mn en redes de distribución de aguas
DE202015105583U1 (de) 2015-10-21 2017-01-27 Witty Gmbh & Co. Kg Reinigungsmittel
DE102015117955B4 (de) 2015-10-21 2019-05-09 Witty Gmbh & Co. Kg Verfahren zur Reinigung und Desinfektion von Trinkwasserbehältern

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DE974400C (de) * 1952-11-16 1960-12-15 Henkel & Cie Gmbh Beize fuer Buntmetalle
US3085929A (en) * 1961-03-16 1963-04-16 Du Pont Hydroxyacetate pesticide
LU60299A1 (es) * 1969-02-07 1970-04-06
BE758162A (fr) * 1969-10-28 1971-04-01 Fmc Corp Stabilisation de solutions acidifiees d'eau
US3682702A (en) * 1970-09-02 1972-08-08 Ethyl Corp Method of removing manganese oxide deposits
US3817859A (en) * 1972-03-29 1974-06-18 Texaco Inc Waste water treatment method
JPS526853B2 (es) * 1972-12-22 1977-02-25
US4009115A (en) * 1974-02-14 1977-02-22 Amchem Products, Inc. Composition and method for cleaning aluminum at low temperatures
JPS576997B2 (es) * 1974-05-16 1982-02-08
FR2297906A1 (fr) * 1975-01-14 1976-08-13 Ugine Kuhlmann Stabilisation du peroxyde d'hydrogene dans les bains acides pour le decapage des metaux
JPS5525754A (en) * 1978-08-15 1980-02-23 Kurita Kasen Kk Method of cleaning scale

Non-Patent Citations (1)

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Title
See references of WO8402125A1 *

Also Published As

Publication number Publication date
US4806169A (en) 1989-02-21
DE3244443C2 (de) 1986-11-06
EP0113060B2 (de) 1989-04-12
EP0113060B1 (de) 1986-10-29
ATE23143T1 (de) 1986-11-15
DE3244443A1 (de) 1984-06-07
ES527721A0 (es) 1985-05-01
EP0113060A1 (de) 1984-07-11
DE3367204D1 (en) 1986-12-04
WO1984002125A1 (en) 1984-06-07
ES8504634A1 (es) 1985-05-01
CA1245955A (en) 1988-12-06

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

AK Designated contracting states

Designated state(s): AT BE CH DE FR LI LU NL

17P Request for examination filed

Effective date: 19841019

XX Miscellaneous (additional remarks)

Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 83112059.7/0113060 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 06.08.85.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOETZSCH, THOMAS

Inventor name: SPAENE, RAINER